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Perplexity vs GPT Researcher: catalog facts
Perplexity	GPT Researcher
Freemium Free to use, with a paid Pro tier for more advanced search.	Free Free and open source; you pay for any LLM or search APIs you connect.
Web	Web, Self-hosted, Command line
Answers include citations to sources Follow-up questions keep context	Writes cited reports from web and local sources Works with many LLM providers
AI answers can still misread or misstate sources Advanced features sit behind a paid tier	Requires API keys and some setup Report quality depends on the model and sources used
Web application	Downloadable app, Self-hosted
Closed source	Open source
License not stated	License not stated
No account needed	No account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 26, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.